From 65100d19fc5b0fbb901c03f6e5334e14e48cefc8 Mon Sep 17 00:00:00 2001
From: Mackenzie Clark <mackenzie.a.z.c@gmail.com>
Date: Fri, 1 Mar 2019 11:24:14 -0800
Subject: [PATCH] add __exit

---
 lib/emscripten/src/exit.rs | 7 +++++++
 lib/emscripten/src/lib.rs  | 4 ++++
 2 files changed, 11 insertions(+)
 create mode 100644 lib/emscripten/src/exit.rs

diff --git a/lib/emscripten/src/exit.rs b/lib/emscripten/src/exit.rs
new file mode 100644
index 000000000..c53fd2bd2
--- /dev/null
+++ b/lib/emscripten/src/exit.rs
@@ -0,0 +1,7 @@
+use wasmer_runtime_core::vm::Ctx;
+
+// __exit
+pub fn __exit(_ctx: &mut Ctx, value: i32) {
+    debug!("emscripten::__exit {}", value);
+    ::std::process::exit(value);
+}
diff --git a/lib/emscripten/src/lib.rs b/lib/emscripten/src/lib.rs
index cbcb5c1fc..822fbdc0e 100644
--- a/lib/emscripten/src/lib.rs
+++ b/lib/emscripten/src/lib.rs
@@ -32,6 +32,7 @@ mod env;
 mod errno;
 mod exception;
 mod exec;
+mod exit;
 mod io;
 mod jmp;
 mod linking;
@@ -443,6 +444,9 @@ pub fn generate_emscripten_env(globals: &mut EmscriptenGlobals) -> ImportObject
             // exec
             "_execvp" => func!(crate::exec::_execvp),
 
+            // exit
+            "__exit" => func!(crate::exit::__exit),
+
             // Env
             "___assert_fail" => func!(crate::env::___assert_fail),
             "_getenv" => func!(crate::env::_getenv),